Tool-holder



(No Model.) J. E. SMITH.

TOOL HOLDER.

No. 521,965. I Patented June 26, 1894.

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holder in connection with'a grind stone.

'eling joint of the holder.

' UNITED STATES PATE T OFFI E.

JOHN E. SMITH, or BUFFALO, NEW YORK.

TOOL-HOLDER.

' srEcrFrcA'rron forming part of Letters Patent No. 521,965, dated June26,1894- Application filed April 9, 1894.

.To aZZ whom it may concern Be it known that 1, JOHN E. SMITH, a citizenof the United States, residing at Buffalo, in the county of Erie andState of New York, have invented a new and useful Improvement inTool-Holders, of which the following is a specification."

This invention relates to that classof tool holders which are employedin connection with a grind stone for sharpening .tools and cutlery.

The object of my invention is the production of a simple holder of thiskind whereby comparatively large knives, such as butchers knives andcleavers, may be firmly held and conveniently presented to the grindstone, and which may be readily adj usted to receive knives ofdififerent sizes, as well as be moved into various positions for givingthe desired cutting edge to the knife or cleaver.

In the accompanying drawingsz Figure l is a perspective view of myimproved tool Fig. 2 is an enlarged perspective view of the swiv- Fig. 3is a vertical section thereof. Fig. 4 is a fragmentary perspective viewof a modified construction of the holder.

Like letters of reference refer to like part in the several figures.

A is the grind-stone and B the trough in which the stone is arranged,and which is supported by legs B.

O is a post or standard secured in a bearing (1 formed on a brackct'D ofthe trough and preferably made vertically adj ustable therein by meansof a set screw d. The standaid 0 is formed at its upper end with a heador enlargement c and to this head a block e is pivoted by means of ahorizontal ,bolt e, so as to permit said block to tilt toward eitherside of the standard.

f is a transverse guide rod secured centrally to the swiveling block 6and forming the rear member of the tool holding frame.

g is a transverse tool supporting rod arranged in front of the guiderod, parallel with the latter, and h, h are longitudinal or side rodswhich extend rearwardly from the front rod 9 to the guide rod f.

t 11 represent supporting blocks arranged to Serial No. 506,845. (Nomodel.)

slide freely on the guide rod and provided with openings for the passageof said rod. The rear portions of the side rods pass through openingsformed in the sliding blocks 71 at right angles to the guide rod, andthey are adjustably secured in said openings by set screws j.

k 10 represent supporting blocks secured to the front ends of thesliding rods and having transverse openings in which the front rod isadj ustably secured by set screws Z.

m m are knife clamps which are mounted upon the front rod 9 and in whichthe knife or cleaver to be ground is secured. These clamps are providedwith openings through which the front rod passes and are secured inplace by set screws m arranged in openingsformed in their rear ends andbearing against said rod. Each clamp preferably consists of a pair ofjaws between which the knife or cleaver is confined bya clamping orthumb screw 'm arranged in the upper jaw of the clamp and bearingagainst the adjacent side of the knife or cleaver. Upon loosening theset screws of the front blocks, the latter may be adjusted toward orfrom each other in accordance with the length of the knife or cleaver tobe ground, and upon loosening the set screws of the rear blocks, theside rods may be adjusted forward or backward to locate the front ortool supporting red at the proper distance from the face of the grindstone. After these rods have been properly adjusted the set screws ofthe several blocks are again tightened. The knife clamps may be adjustedtoward or from each other after loosening their set screws, and they mayalso be inclined on the front rod at a greater or less angle, inaccordance with the desired bevel which is to be given to the cuttingedge of the knife or cleaver. Upon loosening the set screw of thestandard, the same may be raised or lowered for placing the rear portionof the tool holder at the desired elevation. As the rear blocks are freeto slide on the guide rod, the side and front rods car ried, by saidblocks may be moved laterally on the guide rod in either direction, forpre== senting all portions of the cutting edge of the knife to thegrind-stone. The front rod, be-

ing supported at both ends by the side rods,

forms a firm support whereby the knife is reliably held in positionduring the operation of grinding, without any effort on the part of theoperator, the operator being only required to slide the tool holdingframe back and forth on the transverse guide rod. This construction alsopermits the tool holding frame to be swung upward and backward towardthe operator for examining the knife edge from time to time. In case theknife or cleaver has rounded ends, the latter are readily ground bytilting the tool holding frame on the pivot bolt 6' at the upper end ofthe standard.

If desired, the transverse guide rod maybe rigidly connected with theenlarged upper end 0' of the standard, as shown in Fig. 4, but in thatcase the holder can be used only for grinding straight-edged knives orcleavers.

I claim as my invention-- 1. In a tool holder, the combination with atransverse guide rod,of rearsupporting blocks mounted on said guiderod,longitudinal rods attached at their rear portions to said blocks,front supporting blocks attached to the front portions of saidlongitudinal rods, a transverse rod arranged in front of said guide rodand supported in said front blocks, and a knife supporting clamp orclamps mounted on said transverse front rod, substantially as set forth.

2. In a tool holder, the combination with a transverse guide rod, ofrearsupportingbloeks capable of sliding on said rod, longitudinal rodscapable of forward and backward adjustment in said rear blocks, atransverse front rod, front supporting blocks secured to the front endsof the longitudinal rods and capable of lateral adjustment on thetransverse front rod, and a knife clamp or clamps adjustably secured tothe transverse front rod, substantially as set forth.

3. In a tool holder, the combination with a standard or support, of atransverse guide rod pivoted to said standard by a horizontal bolt,

a front supporting rod carrying knife clamps, 45

supporting blocks sliding on said guide rod, and side rods connectingthe front supporting rod with said sliding blocks, substantially as setforth.

\Vitness my hand this 29th day of March, 1894.

.TGIIN E. SMITH.

Witnesses:

CARL F. GEYER, JNo. J. BONNER.

